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feat(#1928): remove sunset Gemini CLI runtime, redirect to Antigravity (#1996)

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* feat(#1928): remove sunset gemini cli runtime, redirect to antigravity

Google sunset Gemini CLI on 2026-06-18; Antigravity CLI is its official successor (already a first-class GSD runtime). Remove the gemini runtime from the enum (16->15), aliases, labels, config-home fragment, install path, converters (convertClaudeToGemini{Markdown,Toml,Agent}, convertSlashCommandsToGeminiMentions), capability descriptor, gemini-extension.json, RULESET.GEMINI.*, and the interactive menu (renumbered, no gap).

--gemini now prints an explicit deprecation notice citing the 2026-06-18 sunset and redirects to --antigravity (no silent alias, per the issue's Hyrum's-Law rejection). Antigravity is preserved throughout: its GEMINI.md contextFileName, .gemini/antigravity config home, the shared convertGeminiToolName/claudeToGeminiTools tool vocabulary, and the 'gemini' hookEvents dialect it declares. GEMINI.md retargeted as Antigravity's context file.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* chore(#1928): backfill changeset PR number (#1996)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

* chore(#1928): drop Gemini CLI from issue templates (review nit)

Removes the sunset Gemini CLI runtime from the two GitHub issue-template
runtime lists that the removal PR missed, per @davesienkowski's review nit:
- feature_request.yml: 'Applicable runtimes' checkbox (a user could otherwise
  request a feature for a runtime GSD no longer supports)
- bug_report.yml: 'Runtime' dropdown + the stale ~/.gemini/settings.json
  retrieval-help line

Leaves the post-removal templates fully consistent with the Antigravity redirect.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
This commit is contained in:
Tom Boucher
2026-07-04 13:32:51 -04:00
committed by GitHub
parent 55604e9124
commit 8f2ebbe9bf
91 changed files with 872 additions and 4528 deletions
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35
src/runtime-hooks-surface.cts
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@@ -1127,7 +1127,7 @@ function writeCopilotHookConfig(targetDir: string): string {
//
// MUTATES `settings` by reference — registers all GSD-managed hook entries
// into settings.hooks.* for runtimes that use a settings.json hook surface
// (Claude Code, Gemini, Antigravity, Qwen Code, and others).
// (Claude Code, Antigravity, Qwen Code, and others).
// Skipped entirely for runtimes whose hooksSurface descriptor field is 'none'
// (opencode and kilo, which have their own hook surface).
//
@@ -1138,7 +1138,7 @@ function writeCopilotHookConfig(targetDir: string): string {
//
// @param settings - The settings object already read from disk. Mutated in place.
// @param opts - Closure values the block read from install()'s scope.
// runtime - runtime ID string (e.g. 'claude', 'gemini', 'qwen')
// runtime - runtime ID string (e.g. 'claude', 'antigravity', 'qwen')
// hooksSurface - descriptor hooksSurface field ('settings-json'|'none'|…); if !== 'none', hooks are written
// isGlobal - true for global installs
// targetDir - absolute path to the runtime config dir
@@ -1290,7 +1290,7 @@ function applySettingsJsonHooks(settings: any, opts: ApplySettingsJsonHooksOpts)
// Configure PreToolUse hook for prompt injection detection
// ADR-857 phase 5f-2: drive dialect from opts.hookEvents (registry descriptor).
// hookEvents='gemini' → BeforeTool; all others → PreToolUse.
// Equivalence: hookEvents='gemini' iff runtime∈{gemini,antigravity} (same as old check).
// Equivalence: hookEvents='gemini' iff runtime===antigravity (same as old check).
const preToolEvent = hookEvents === 'gemini' ? 'BeforeTool' : 'PreToolUse';
if (!settings.hooks[preToolEvent]) {
settings.hooks[preToolEvent] = [];
@@ -1583,9 +1583,14 @@ function applySettingsJsonHooks(settings: any, opts: ApplySettingsJsonHooksOpts)
}
// ── end SubagentStop / Stop / PreCompact events ────────────────────────────
// ── Gemini-only extended hook events (#776) ───────────────────────────────
// Gemini CLI exposes several hook events beyond BeforeTool/AfterTool that
// gsd previously did not register. Three high-value events are added here:
// ── Extended hook events (#776; Gemini runtime removed #1928) ──────────────
// The Gemini-3-backend dialect exposes several hook events beyond
// BeforeTool/AfterTool. These were added for the now-removed Gemini CLI
// runtime (#776). No currently supported runtime declares them —
// Antigravity's descriptor carries `extendedHookEvents: []` — so this loop
// is an inert, descriptor-driven seam: it no-ops for every present runtime
// and re-activates automatically if a future runtime declares any of them.
// Three high-value events would be wired here:
//
// BeforeAgent — fires after user submits a prompt, before the agent
// plans. Wire gsd-context-monitor for context headroom
@@ -1606,16 +1611,16 @@ function applySettingsJsonHooks(settings: any, opts: ApplySettingsJsonHooksOpts)
// gsd hook use case at this time; deferred to a follow-on issue.
//
// Guard is now descriptor-driven: only events present in extendedEvents are wired.
for (const geminiEvent of ['BeforeAgent', 'AfterAgent', 'BeforeModel']) {
if (!extendedEvents.includes(geminiEvent)) continue;
if (!Array.isArray(settings.hooks[geminiEvent])) {
settings.hooks[geminiEvent] = [];
for (const extendedEvent of ['BeforeAgent', 'AfterAgent', 'BeforeModel']) {
if (!extendedEvents.includes(extendedEvent)) continue;
if (!Array.isArray(settings.hooks[extendedEvent])) {
settings.hooks[extendedEvent] = [];
}
const alreadyHasContextMonitor = settings.hooks[geminiEvent].some((entry: HookGroup) =>
const alreadyHasContextMonitor = settings.hooks[extendedEvent].some((entry: HookGroup) =>
entry.hooks && entry.hooks.some((h: HookEntry) => referencesHook(h as Record<string, unknown>, 'gsd-context-monitor'))
);
if (!alreadyHasContextMonitor && fs.existsSync(contextMonitorFile) && contextMonitorCommand) {
settings.hooks[geminiEvent].push({
settings.hooks[extendedEvent].push({
hooks: [
{
type: 'command',
@@ -1624,12 +1629,12 @@ function applySettingsJsonHooks(settings: any, opts: ApplySettingsJsonHooksOpts)
}
]
});
console.log(` ${green}✓${reset} Configured ${geminiEvent} context monitor hook (Gemini)`);
console.log(` ${green}✓${reset} Configured ${extendedEvent} context monitor hook`);
} else if (!alreadyHasContextMonitor && !fs.existsSync(contextMonitorFile)) {
console.warn(` ${yellow}⚠${reset} Skipped ${geminiEvent} hook — gsd-context-monitor.js not found at target`);
console.warn(` ${yellow}⚠${reset} Skipped ${extendedEvent} hook — gsd-context-monitor.js not found at target`);
}
}
// ── end Gemini-only extended hook events ──────────────────────────────────
// ── end Antigravity-only extended hook events ──────────────────────────────
// ── FileChanged hook: hot-reload gsd config on .planning/config.json edits ─
// Claude Code fires FileChanged when a watched file changes on disk. Wire